Soldering device

ABSTRACT

A soldering device includes a container having a chamber for receiving a mixture of a liquid fuel and a gas and having a mouth for filing the mixture into the chamber of the container, a soldering gun device coupled to the mouth for receiving the mixture, and a pump for pumping air into the chamber of the container. A head has three passageways coupled to three tubes, A housing has an end outlets a duct is slidably received in the housing and has a middle cap and a port formed in one end. A filter drum is engaged between the duct and the housing.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a soldering device, and more particularly to a soldering device having an explosion preventing structure.

[0003] 2. Description of the Prior Art

[0004] Typical soldering devices are powered by gases, such as the ethyne or oxygen or hydrogen which is combustible and which is dangerous and which may explode inadvertently when the soldering device is not used properly.

[0005] The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional soldering devices.

SUMMARY OF THE INVENTION

[0006] The primary objective of the present invention is to provide a soldering device powered by a mixture of a liquid fuel and a gas that is not combustible and that may facilitate the combustion of the liquid fuel.

[0007] In accordance with one aspect of the invention, there is provided a soldering device comprising a container including a chamber provided therein for receiving a mixture of a liquid fuel and a gas, the container including a mouth for filing the mixture into the chamber of the container, a soldering gun device coupled to the mouth for receiving the mixture, and a pump for pumping air into the chamber of the container.

[0008] The pump includes a bucket, a rod slidably received in the bucket and including a first end having a plug secured thereto and sI idably received in the bucket and including a second end extended outward of the bucket, the container includes a barrel provided therein for receiving the pump.

[0009] The barrel includes at least one passage communicating the barrel with the chamber of the container.

[0010] The container includes a cover having a seat secured to the mouth, a check valve received in the seat, a disc secured on the seat for retaining the check valve in the seat, and a knob secured to the disc.

[0011] A number of inserts are further received in the container. The container includes an exit for releasing a pressure in the container and a check valve received in the exit.

[0012] A soldering gun device for a soldering device comprises a head including a first and a second and a third passageways, a first and a second and a third tubes coupled to the passageways of the head.

[0013] The second tube is received in the third tube. Three control devices are further coupled to the first and the second and the third tubes respectively.

[0014] An aperture is formed between the second and the third passageways, the third tube includes a column slidably received therein, a plug secured to one end of the column for selectively blocking the aperture. A control device is coupled to the column for moving the plug to block the aperture.

[0015] A soldering tip device for a soldering device comprises a housing including a first end having an outlet, and including a second end, a duct slidably received in the housing, the duct including a middle portion having a cup extended radially outward, the duct including a first end located close to the first end of the housing and having a port formed therein, and a filter drum engaged between the duct and the housing.

[0016] The first end of the duct includes a number of slots and ridges formed thereon. The duct includes a peripheral bulge extended radially outward therefrom and engaged with the housing.

[0017] Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018]FIGS. 1, 2, 3 are cross sectional views of a container of a soldering device in accordance with the present invention, for receiving the fuel liquid and the gas;

[0019]FIG. 4 is an exploded view of a cover;

[0020]FIG. 5 is a cross sectional view of the cover as shown in FIG. 4:

[0021]FIGS. 6 and 7 are plane schematic views illustrating the applications of the soldering gun devices:

[0022]FIG. 8 is an exploded view of a soldering tip;

[0023]FIG. 9 is a lateral cross sectional view of the soldering tip as shown in FIG. 5;

[0024]FIG. 10 is a longitudinal cross sectional view of the soldering tip as shown in FIG. 5;

[0025]FIG. 11 is a plane schematic view illustrating the other applications of the soldering gun devices;

[0026]FIG. 12 is a cross sectional view of a valve member for the hand pump;

[0027]FIGS. 13, 14 are partial cross sectional views of the hand pump and the valve member;

[0028]FIG. 15 is a perspective view showing the other embodiment of the valve member for the hand pump, in which one half of the valve member is cut off;

[0029]FIG. 16 is a cross sectional view similar to FIG. 10, illustrating the other embodiment of the soldering tip; and

[0030]FIG. 17 is an enlarged partial cross section of the soldering tip as shown in FIG. 16.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0031] Referring to the drawings, and initially to FIGS. 1-3 a soldering device in accordance with the present invention comprises a container 1 including a body 103 having a handle 10 attached thereto for carrying purposes. The container 1 includes a chamber 100 formed therein and provided for receiving a gas and fuel mixture which includes the liquid fuel, such as the gasolene, and the gas that is not combustible and that may facilitate the combustion of the liquid fuel, such as the nitrogen. The liquid fuel may be received in the bottom portion of the chamber 100, and the gas may be received in the upper portion 107 of the chamber 100 of the housing 10. The container 1 includes a mouth 13 for filling the mixture into the container 1, and includes an outlet 16 which is normally enclosed with a lid or the like and may be opened for discharging the mixture when required. A pressure gauge 12 may be attached to the container 1 for detecting the pressure of the mixture received in the container 1. A number of inserts 101, such as the coil springs, may be disposed into the chamber 100 of the container 1 via the mouth 13. The inserts 101 may be randomly disposed in the container 1 or may be secured in the container 1, for separating the separating the chamber 100 of the container 1 into a number of small spaces and for pacifying the mixture of the liquid fuel and the gas.

[0032] The container 1 includes an exit 11 having a check valve provided therein for filling the gas into the container 1. The check valve in the exit 11 may be opened by a stick, a solenoid valve, a compressor, a switch or the other facility that may open the check valve, for allowing the gas in the container 1 to flow out of the container 1. A discharge device 14 includes a tube 143 extended inward of the container 1 and a filter device 144 attached to the bottom of the tube 143, for discharging the mixture in the container 1, and a hose 147 coupling the tube 143 to a coupler 141 which may be coupled to a pump, such as a hand pump 15 (FIG. 3) or a soldering gun device 2 (FIGS. 6, 7). A filter devcie 142 may be disposed in the coupler 141 or disposed between the coupler 141 and the hand pump 15 or the soldering gun 2.

[0033] A barrel 102 is provided in the container 1 and includes one or more passages 157 formed therein and communicating with the chamber 100 of the container 1, and includes an opening 104 formed in the upper portion thereof. The passages 157 are provided in the upper portion of the barrel 102 for preventing the liquid fuel from entering into the barrel 102. The pump 15 includes a bucket 151 receivable in the barrel 102 and includes a fastener 152 attached on the outer portion of the barrel 102 and received in the opening 104 of the barrel 102 and threaded to the barrel 102 or threaded to the container 1 for securing the pump 15 in the barrel 102. A rod 155 is slidably received in the bucket 151, a piston 154 is secured to one end of the rod 155 and slidably received in the bucket 151, and a hand grip 153 is secured to the other end of the rod 155 for moving the piston 154 in and along the bucket 151 and for pumping the air into the chamber 100 of the container 1 via the barrel 102 and the passages 157 of the barrel 102. A check valve 158 is secured to the end of the bucket 151 for allowing the air to flow out of the bucket 151 only. A spring 156 may be provided and engaged on the rod 155 for engaging with an end cap and for preventing the plug 154 from impacting onto the end cap. As shown in FIG. 3, the pump 15 may be coupled to the coupler 141 for pumping air into the discharge device 14 and for forcing the liquid fuel in the discharge device 14 into the container 1. The couler 141 may be closed for preventing the flame from entering into the container 1.

[0034] Referring to FIGS. 12-14 and again to FIGS. 1-3, a valve member 70 may further be provided and includes an inner thread 71 for coupling to the check valve 158 of the hand pump 15, and includes a ring 74 and a cylindrical member 73 provided in an outer casing 72, and includes an orifice 75 formed in the cylindrical member 73 for receiving the hose 147 or the coupler 141, and includes a number of ribs 76 extended inward of the orifice 75 for engaging with the hose 147 and for solidly retaining the hose 147 to the valve member 70. Alternatively, as shown in FIG. 15, the casing 72 and the ring 74 and the cylindrical member 73 may be formed as an integral one-piece.

[0035] Referring to FIGS. 4, 5 and again referring to FIGS. 1-3, a cover 30 is provided for attaching onto the mouth 13 and for blocking the mouth 13, and includes a seat 31 threaded into the mouth 13. A sealing ring 301 is engaged between the seat 31 and the mouth 13 of the container 1 for making a water tight and an air tight between the cover 30 and the container 1. The seat 31 includes a recess 311 formed in the upper portion thereof, and a screw hole 313 formed therein for threading with a screw 324, and includes a lower portion having a hole 315 formed therein and having a valve seat 314 provided therein. A stop 321 is slidably received in the seat 31 and includes a pole 322 extended upward therefrom. A spring 323 is engaged on the pole 322. The screw 324 includes a bore 325 formed therein for slidably receiving the pole 322. The spring 323 is engaged between the screw 324 and the stop 321 for biasing the stop 321 to block the hole 315 and to form a check valve 32.

[0036] A disc 33 has one or more air conduits 331 formed therein and has a bolt 332 extended upward therefrom and secured to a knob 34 with a nut 302 and has a peripheral swelling 333 engaged into the recess 311 of the seat 31 for forming a gap 37 (FIG. 5) between the disc 33 and the seat 31. The disc 33 may be secured to the seat 31 with fasteners or by welding processes or by a force-fitted engagement. As best shown in FIG. 5, the pole 322 has a diameter smaller than that of the bore 325 of the screw 324 such that the air flows into the seat 31 via the hole 315 may flow into the gap 37 and may flow out through the air conduits 331 of the disc 33. When the air pressure in the container 1 is greater than the biasing force of the spring 323, the pressurized air in the container 1 may force the stop 321 upward against the spring 323 for allowing the air to flow out of the container 1 and for preventing the container 1 from being over-pressurized.

[0037] Referring next to FIG. 6, a soldering gun device 2 may be provided and coupled to the discharge device 14 for receiving the liquid fuel and gas mixture for flaming purposes. The soldering gun device 2 includes a handle 20 having a coupler 201 coupled to the discharge device 14, and includes one or more tubes 21, 22, 23 coupled between the handle 20 and a head 24. The tube 22 may be disposed in the other tube 23 (FIG. 7) or may be separated from the tube 23 (FIG. 6). A control device 25, 251, 252 is attached to each of the tubes 21-23 for controlling the liquid fuel and gas mixture through the tubes 21-23. A column 253 is slidably received in the tube 23 and has one end coupled to the control device 25 and has a plug 254 provided on the other end. As shown in FIG. 10, the head 24 includes three passageways 242, 243, 244 coupled to the tubes 21-23 respectively, and includes an aperture 247 formed between the passageways 243, 244. The plug 254 may be forced to block the aperture 247 by the control device 25. The head 24 includes a peirpheral wall 241 for forming or defining a chamber 245 therein. As shown in FIG. 11, a box 60 may be provided for receiving and retaining the tubes 21-23.

[0038] Referring next to FIGS. 8 and 9, and again to FIG. 10, a soldering tip 4 includes a housing 40 having a peripheral rib 41 for coupling or securing to the head 24 with the other coupling devices or fasteners. The housing 40 includes an outlet 42 defined by a peripheral fence 421. The soldering tip 4 further includes a nozzle 50 received in the housing 40 and having a duct 52 received in the head 24 and the housing 40 and having a peripheral bulge 53 extended radially outward from the duct 52 and having an inclined peripheral surface engaged between the head 24 and the housing 40. The peripheral bulge 53 includes a number of grooves 58 formed therein. A distance of about 0 to 20 cm may be formed between the end of the grooves 5S or the end of the peripheral bulge 53 and the tube 23. The nozzle 50 has a cup 57 extended radially outward from the middle portion of the duct 52 and has a cavity 571 formed therein and facing away from the head 24. The cup 57 has a diameter smaller than that of the housing 40 and is not contacted with the inner peripheral portion of the housing 40. A peripheral space 59 is formed between the cup 57 and the peripheral bulge 53. A port 51 is formed in the end portion of the duct 52 and has a reduced inner diameter such that the liquid fuel and gas mixture may flow out of the nozzle 50 in a faster speed. The duct 52 includes a reduced end portion 56 having a peripheral shoulder 561 formed therein and having a number of slots 54 formed therein for forming or defining a number of ridges 55 between the slots 54. One or more filter drums 43 may be engaged on the duct 52 and may be engaged with the peripheral shoulder 561 and the peripheral fence 421 for filtering the dirt and for allowing only the liquid fuel and gas mixture to flow through the filter drum 43.

[0039] In operation, as shown in FIG. 10, the liquid fuel and gas mixture from the tube 21 via the passageway 242 may directly flow out of the nozzle 50 via the port 51. The liquid fuel and gas mixture from the tube 22 via the passageway 243 may flow into the chamber 245 of the head 24 and may suck or draw the liquid fuel and gas mixture from the passageway 244 into the passageway 243 and may vaporize the liquid fuel and gas mixture. The plug 254 may be controlled to block the aperture 247 for preventing the liquid fuel and gas mixture from the passageway 244 to flow into the passageway 243 or to directly flow into the chamber 245 of the head 24. The liquid fuel and gas mixture may then flow into the peripheral space 59 via the grooves 58 in a faster flowing speed due to the reduced diameter or size of the grooves 58 then that of the chamber 245 of the head 24. The inclined or curved outer peripheral surface of the cup 57 may facilitate the mixture to flow over or bypass the cup 57 and to flow through the filter drum 43. The soldering tip 4, particularly the end of the housing 40 will be heated during the soldering operations, such that the mixture received in the housing 40 may be heated and inflated or evaporated. Some of the evaporated mixture may be forced to flow through the filter drum 43, and the other evaporated mixture may be forced to flow backward toward the cup 57, but may be blocked by the cup 57 and may then be forced or sucked to flow toward and through the filter drum 43 by the mixture flowing over or bypass the cup 57. The mixture, particularly the vaporized mixture may thus flow out through the slots 54 of the duct 52. The mixture flowing over or bypass the cup 57 may further facilitate or improve the mixturing of the vaporized liquid fuel and the gas. The quantity and/or the flowing speeds of the mixture flowing through the port 51 of the duct 52 and flowing through the slots 54 of the duct 52 are different from each other such that two flames of different powers may be generated.

[0040] Referring next to FIGS. 16 and 17, the peripheral fence 421 may be formed into different shapes, and the duct 52 may include a solid structure, and may include a sleeve 523 extended inward of the housing 40 for receiving the reduced end portion or member 56, and may include a cusp 524 extended inward of the sleeve 523. The cup 57 may include one or more fins 574 extended inward of the cavity 571 thereof for forming or defining one or more guiding channels 573 and for guiding the flowing of the mixture. The flowing passageway of the mixture may thus be increased.

[0041] Accordingly, the soldering device may be powered by the mixture of the liquid fuel and the gas, in which the gas is not combustible and may facilitate the combustion of the liquid fuel.

[0042] Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed. 

1. A soldering device comprising: a) a container including a chamber provided therein for receiving a mixture of a liquid fuel and a gas, the container including a mouth for filing the mixture into the chamber of the container, b) a soldering gun device coupled to the mouth for receiving the mixture, and c) a pump for pumping air into the chamber of the container.
 2. The soldering device as claimed in claim 1, wherein the pump includes a bucket, a rod slidably received in the bucket and including a first end having a plug secured thereto and slidably received in the bucket and including a second end extended outward of the bucket, the container includes a barrel provided therein for receiving the pump.
 3. The soldering device as claimed in claim 1, wherein the barrel includes at least one passage communicating the barrel with the chamber of the container.
 4. The soldering device as claimed in claim 1, wherein the container includes a cover having a seat secured to the mouth, a check valve received in the seat, a disc secured on the seat for retaining the check valve in the seat, and a knob secured to the disc.
 5. The soldering device as claimed in claim 1 further comprising a number of inserts received in the container.
 6. The soldering device as claimed in claim 1, wherein the container includes an exit for releasing a pressure in the container and a check valve received in the exit.
 7. A soldering gun device for a soldering device comprising: a) a head including a first passageway, a second passageway, and a third passageway, b) a first tube coupled to the first passageway of the head, c) a second tube coupled to the second passageway of the head, and d) a third tube coupled to the third passageway of the head.
 8. The soldering gun device as claimed in claim 7, wherein the second tube is received in the third tube.
 9. The soldering gun device as claimed in claim 7 further comprising three control devices coupled to the first and the second and the third tubes respectively.
 10. The soldering device as claimed in claim 7, wherein an aperture is formed between the second and the third passageways, the third tube includes a column slidably received therein, a plug secured to one end of the column for selectively blocking the aperture.
 11. The soldering device as claimed in claim 10 further comprising a control device coupled to the column for moving the plug to block the aperture.
 12. A soldering tip device for a soldering device comprising: a) a housing including a first end having an outlet, and including a second end, b) a duct slidably received in the housing, the duct including a middle portion having a cup extended radially outwards the duct including a first end located close to the first end of the housing and having a port formed therein, and c) a filter drum engaged between the duct and the housing.
 13. The soldering device as claimed in claim 12, wherein the first end of the duct includes a number of slots and ridges formed thereon.
 14. The soldering device as claimed in claim 12, wherein the duct includes a peripheral bulge extended radially outward therefrom and engaged with the housing. 